DE69727520D1 - Vorrichtung und Verfahren zur Flüssigkeitsstandsmessung - Google Patents

Vorrichtung und Verfahren zur Flüssigkeitsstandsmessung

Info

Publication number
DE69727520D1
DE69727520D1 DE69727520T DE69727520T DE69727520D1 DE 69727520 D1 DE69727520 D1 DE 69727520D1 DE 69727520 T DE69727520 T DE 69727520T DE 69727520 T DE69727520 T DE 69727520T DE 69727520 D1 DE69727520 D1 DE 69727520D1
Authority
DE
Germany
Prior art keywords
liquid level
measuring liquid
measuring
level
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69727520T
Other languages
English (en)
Other versions
DE69727520T2 (de
Inventor
Bruce Cowger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of DE69727520D1 publication Critical patent/DE69727520D1/de
Application granted granted Critical
Publication of DE69727520T2 publication Critical patent/DE69727520T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17566—Ink level or ink residue control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17566—Ink level or ink residue control
    • B41J2002/17573—Ink level or ink residue control using optical means for ink level indication
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S250/00—Radiant energy
    • Y10S250/90—Optical liquid level sensors
DE69727520T 1996-08-15 1997-07-28 Vorrichtung und Verfahren zur Flüssigkeitsstandsmessung Expired - Lifetime DE69727520T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US698719 1996-08-15
US08/698,719 US5852946A (en) 1996-08-15 1996-08-15 Method and apparatus for detecting fluid level

Publications (2)

Publication Number Publication Date
DE69727520D1 true DE69727520D1 (de) 2004-03-18
DE69727520T2 DE69727520T2 (de) 2004-12-16

Family

ID=24806395

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69727520T Expired - Lifetime DE69727520T2 (de) 1996-08-15 1997-07-28 Vorrichtung und Verfahren zur Flüssigkeitsstandsmessung

Country Status (4)

Country Link
US (1) US5852946A (de)
EP (1) EP0824072B1 (de)
JP (1) JPH1090039A (de)
DE (1) DE69727520T2 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990009269A (ko) * 1997-07-08 1999-02-05 최진호 자동판매기의 원료감지 장치 및 방법
US6299020B1 (en) * 1999-10-22 2001-10-09 Lancer Partnership, Ltd. Beverage dispenser sensor system
US6554382B1 (en) 2002-03-19 2003-04-29 Hewlett-Packard Development Company, L.P. Ink container electrical resistance ink level sensing mechanism and method for determining ink level information
EP1512312A4 (de) 2002-05-13 2006-11-22 Johnson & Son Inc S C Koordinierte emission von gerüchen, licht und klängen
AU2004212459B2 (en) 2003-02-07 2010-03-11 S.C. Johnson & Son, Inc. Diffuser with light emitting diode nightlight
JP2005313542A (ja) * 2004-04-30 2005-11-10 Canon Inc 液体タンクおよび液体吐出記録装置
DK1818664T3 (da) * 2006-02-13 2013-08-05 Hoffmann La Roche Apparat til erkendelse af en trykændring i et mikrodoseringsapparats væskebane
JP5134212B2 (ja) * 2006-06-08 2013-01-30 ブラザー工業株式会社 インクカートリッジ
US7535571B2 (en) * 2006-07-26 2009-05-19 Mitsubishi Electric Research Laboratories, Inc. Optical fluid level encoder
US8272704B2 (en) * 2008-05-22 2012-09-25 Zipher Limited Ink containment system and ink level sensing system for an inkjet cartridge
CA2739362A1 (en) * 2011-05-06 2012-11-06 Gotohti.Com Inc. Fluid level gauge
EP2468511B1 (de) * 2010-12-27 2013-12-11 Brother Kogyo Kabushiki Kaisha Tintenpatrone und Tintenzufuhrvorrichtung
US9544332B2 (en) * 2013-10-31 2017-01-10 Aruba Networks, Inc. Method and system for network service health check and load balancing
US10130221B2 (en) 2015-01-23 2018-11-20 Gpcp Ip Holdings Llc Optimizing a dispensing parameter of a product dispenser based on product usage data
US11412900B2 (en) 2016-04-11 2022-08-16 Gpcp Ip Holdings Llc Sheet product dispenser with motor operation sensing
US11395566B2 (en) 2016-04-11 2022-07-26 Gpcp Ip Holdings Llc Sheet product dispenser
US10874265B2 (en) 2017-05-10 2020-12-29 Gpcp Ip Holdings Llc Sheet product level sensor calibration and indication systems and methods
US11617478B2 (en) 2019-10-09 2023-04-04 Gpcp Ip Holdings Llc Systems and methods for product level tracking of sheet product rolls
US11605247B2 (en) 2019-11-17 2023-03-14 Gpcp Ip Holdings Llc Generating people counts based on dispenser usage
US11414314B1 (en) * 2021-11-30 2022-08-16 Zurn Industries, Llc Cloud-connected smart sensing and measurement method for resource dispensers
CN114889332B (zh) * 2022-06-16 2023-04-25 极海微电子股份有限公司 耗材盒

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2190027A (en) * 1939-02-11 1940-02-13 Jordan Henry Ewin Liquid detecting device
US3448616A (en) * 1967-06-29 1969-06-10 Sinclair Research Inc Liquid level detector
US4038650A (en) * 1975-10-14 1977-07-26 Martin Evans Fluid level detector and probe assembly
US4443699A (en) * 1979-08-31 1984-04-17 The Johns Hopkins University Fluid level measuring device with linear, high resolution output
US4544840A (en) * 1979-08-31 1985-10-01 The Johns Hopkins University Fiber optic fluid impurity detector
US4342042A (en) * 1980-12-19 1982-07-27 Pitney Bowes Inc. Ink supply system for an array of ink jet heads
JPS58190724A (ja) * 1982-04-30 1983-11-07 Keizo Suzuki エンジンのオイルゲ−ジ
JPS60172546A (ja) * 1984-02-20 1985-09-06 Konishiroku Photo Ind Co Ltd インク残量検出装置
DE3408302A1 (de) * 1984-03-07 1985-09-12 Olympia Werke Ag, 2940 Wilhelmshaven Messvorrichtung fuer die restliche tinte in einem flexiblen tintenbeutel in tintenschreibeinrichtungen
DE3529805A1 (de) * 1985-08-20 1987-02-26 Siemens Ag Anordnung zur ermittlung des tintenvorratsendes in tintenbehaeltern von tintenschreibeinrichtungen
JPS63169521A (ja) * 1987-01-07 1988-07-13 Toshiba Corp 変位計
US4732035A (en) * 1987-02-06 1988-03-22 Pandel Instruments, Inc. Method and apparatus for storage tank leak detection having temperature compensation
US4783599A (en) * 1987-02-10 1988-11-08 High Yield Technology Particle detector for flowing liquids with the ability to distinguish bubbles via photodiodes disposed 180° apart
JPS6444819A (en) * 1987-08-13 1989-02-17 Nitto Machinery Level gage utilizing laser light
US4973993A (en) * 1989-07-11 1990-11-27 Hewlett-Packard Company Ink-quantity and low ink sensing for ink-jet printers
US5054319A (en) * 1990-09-12 1991-10-08 Fling John J Liquid level sensor and method
US5164605A (en) * 1991-08-14 1992-11-17 The Babcock & Wilcox Company Fiber optic displacement sensor using fiber optic coil
US5406315A (en) * 1992-07-31 1995-04-11 Hewlett-Packard Company Method and system for remote-sensing ink temperature and melt-on-demand control for a hot melt ink jet printer
JP3138359B2 (ja) * 1993-05-13 2001-02-26 キヤノン株式会社 インクタンク、該タンクとインクヘッドとを一体に構成してなるインクタンク一体型ヘッドカートリッジ、前記インクタンクまたはヘッドカートリッジを具備したインクジェットプリント装置

Also Published As

Publication number Publication date
EP0824072A2 (de) 1998-02-18
EP0824072A3 (de) 1999-07-07
US5852946A (en) 1998-12-29
JPH1090039A (ja) 1998-04-10
EP0824072B1 (de) 2004-02-11
DE69727520T2 (de) 2004-12-16

Similar Documents

Publication Publication Date Title
DE69532091D1 (de) Verfahren und Vorrichtung zur Durchführung von Messungen
DE69907878D1 (de) Verfahren und vorrichtung zur elektrokoagulation von flüssigkeiten
DE69510587D1 (de) Verfahren und Vorrichtung zur Ermittlung der Fahrbahnsteigung
DE69623248D1 (de) Verfahren und Vorrichtung zur Entfernungsmessung
DE69534726D1 (de) Verfahren und Vorrichtung zur Kapillarentwässerung
DE69727520D1 (de) Vorrichtung und Verfahren zur Flüssigkeitsstandsmessung
DE69729737D1 (de) Verfahren und vorrichtung zur zeitbestimmung in gps-empfängern
DE69535165D1 (de) Verfahren und Vorrichtung zur Bohrlochuntersuchung
DE69810067D1 (de) Vorrichtung und Verfahren zur Flüssigkeitsejektion
DE69839641D1 (de) Verfahren und vorrichtung zur blutdruckmessung
DE69616142T2 (de) Verfahren und Vorrichtung zur Flüssigentwicklung und Übertragung
DE69928465D1 (de) Vorrichtung und Verfahren zur simultanen Messung von unterschiedlichen Strahlungsarten
DE69434254D1 (de) Vorrichtung und verfahren zur flüssigkeitsanalyse
DE69634187D1 (de) Verfahren und Vorrichtung zur Erkennung von Fehlzündungen
DE69716088T2 (de) Verfahren und gerät zur anzeige eines autostereogramms
DE69717423D1 (de) Verfahren und vorrichtung zur detektion der vertikalen windänderung
DE69623879T2 (de) Vorrichtung und Verfahren zur Volumenermittlung
DE69819227D1 (de) Vorrichtung und Verfahren zur Trübungsmessung
DE69522327T2 (de) Verfahren und vorrichtung zur richtungsbestimmung
DE69737845D1 (de) Gerät und Verfahren zur Bohrlochmessung
DE69721698D1 (de) Verfahren und Vorrichtung zur Anzeige von Messgrössen
DE59502277D1 (de) Verfahren und vorrichtung zur elektrooptischen entfernungsmessung
DE59609675D1 (de) Verfahren und Vorrichtung zur Abstandsmessung
DE69716922D1 (de) Verfahren und vorrichtung zur erhöhung der datenschrittaktualisierung in messinstrumenten
DE69830975D1 (de) Gerät und Verfahren zur Potential-messung

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, TE